[Mesa-dev] [PATCH 6/8] i965 gen6: Turn on transform feedback extension.

[Kenneth Graunke]

On 12/13/2011 03:35 PM, Paul Berry wrote:
> This patch advertises support for EXT_transform_feedback on Intel Gen6
> and higher.
> 
> Since transform feedback support is not completely finished yet, for
> now we only advertise support for it when MESA_GL_VERSION_OVERRIDE is
> 3.0 or greater (since transform feedback is required by GL version
> 3.0).
> ---
>  src/mesa/drivers/dri/intel/intel_extensions.c |    7 +++++--
>  1 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/src/mesa/drivers/dri/intel/intel_extensions.c b/src/mesa/drivers/dri/intel/intel_extensions.c
> index 681f5f2..41ae29e 100644
> --- a/src/mesa/drivers/dri/intel/intel_extensions.c
> +++ b/src/mesa/drivers/dri/intel/intel_extensions.c
> @@ -98,10 +98,13 @@ intelInitExtensions(struct gl_context *ctx)
>     ctx->Extensions.OES_EGL_image = true;
>  #endif
>  
> -   if (intel->gen >= 6)
> +   if (intel->gen >= 6) {
>        ctx->Const.GLSLVersion = 130;
> -   else
> +      if (override_version >= 30)
> +         ctx->Extensions.EXT_transform_feedback = true;
> +   } else {
>        ctx->Const.GLSLVersion = 120;
> +   }
>     _mesa_override_glsl_version(ctx);
>  
>     if (intel->gen >= 5)

I'd go ahead and add a new (intel->gen >= 6) block after
_mesa_override_glsl_version.  That way this block can be solely for
determining the GLSL version.